cup、glass与mug这三个名词均可表示“杯、杯子”之意。
cup : 指有柄，用来饮茶或咖啡等的瓷杯。
- a cup and saucer
一副杯碟 - a plastic/paper cup
塑料／纸杯
glass : 指玻璃制的杯子，用来盛酒和牛奶等东西。
- a beer/wine glass
啤酒／葡萄酒杯 - She poured some milk into a glass.
她往玻璃杯中倒了些牛奶。
mug : 通常指周边垂直，不用茶托的有柄大瓷杯或大金属杯。
- I made myself a large mug of cocoa (= enough to fill a mug) and went to bed.
我为自己冲了一大杯可可饮料，然后钻进了被窝。
